Roll-on applicator



FIG. 1 is a front elevational view of a roll-on applicator, with optional cover removed, showing my new design;

FIG. 2 is a rear elevational view thereof, with optional cover in place;

FIG. 3 is a side elevational view thereof, the left side being a mirror image of the right side shown;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a roll-on applicator, essentially as shown and described. 